CN105148849B - It is a kind of that the application that solid absorbent handles waste water is prepared by wheat stalk - Google Patents
It is a kind of that the application that solid absorbent handles waste water is prepared by wheat stalk Download PDFInfo
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Abstract
The invention discloses a kind of application that solid absorbent processing waste water is prepared by wheat stalk, the copper ion in waste water is adsorbed using described solid absorbent product, in the present invention, solid absorbent product is prepared by wheat stalk, wheat stalk obtains solid absorbent product by obtaining solid product and liquid product, wherein solid product after pretreatment, pre-treatment, carbonization treatment by modified.
Description
Technical field
The present invention is application for a patent for invention《A kind of integrated conduct method of agricultural stalk》(number of patent application：
201310563383.9) divisional application.It is related to a kind of integrated conduct method of agricultural stalk, more particularly to one kind by wheat
Stalk prepares the application that solid absorbent handles waste water.
Background technology
Since 2006, the whole nation from the leadership to the masses strengthens energy-saving and emission-reduction work, and State Council has issued the decision for strengthening energy conservation,
The a series of policies and measures for promoting energy-saving and emission-reduction are formulated, each department, all departments are made that work arrangements, energy-saving and emission-reduction work in succession
Achieve positive progress.But, the whole nation in 2006 is not carried out the target of the energy-saving and pollution emission reduction of beginning of the year determination, plus
The difficulty of 4 years energy-conservation emission reduction works after big Eleventh Five-Year Plan.It is more severe, the first quarter in 2007, the particularly high consumption of industry
Can, high pollution industry increase too fast, account for the electric power of national industrial energy consumption and sulfur dioxide (SO2) emissions nearly 70%, steel, it is coloured, build
The big industry of material, PETROLEUM PROCESSING, chemical industry etc. six increases by 20.6%, accelerates 6.6 percentage points on year-on-year basis.At the same time, various work
Still suffer from that the not in place, responsibility of understanding is indefinite, measure is not matched, policy imperfection, put into and do not implement, coordinate incapable etc. ask
Topic.
Country's " 12 planning " clearly proposes the target of energy-saving and emission-reduction, i.e., by 2015, per GDP carbon dioxide row
Put reduction by 17%；Per Unit GDP Energy Consumption declines 16%；The non-fossil energy accounts for primary energy consumption ratio and brings up again high 3.1 percentage points, from
8.3% to 11.4%；Total emissions of major pollutants reduces by 8 to 10% target.In addition, 12 " planning in also specify that
Major pollutants control total class, on the basis of Eleventh Five-Year Plan COD, carbon dioxide the two classifications, add ammonia nitrogen and
The pollutant catabolic gene index of two classifications of nitrogen oxides.The binding indicator that " 12 " planning is proposed definitely country
The resolution of energy-saving and emission-reduction.State Council determines the major pollutants emission reduction key project of 5 aspects：One is with urban wastewater treatment
Facility and supporting pipeline network construction, existing utility upgrading, specific resistance to filtration Facilities Construction are attached most importance to, and lift denitrogenation dephosphorizing energy
Power.Two are attached most importance to industries such as pulping and paper-making, printing and dyeing, food processing, agricultural byproducts processings, are continued increasing water pollution depth and are controlled
Reason and process and technology innovation.Three be to promote desulphurization denitration engineering construction.Four be to carry out agricultural sources prevention and cure of pollution.Five be that control is motor-driven
Car pollutant emission.
Agricultural stalk is the general name of ripe crops cauline leaf (fringe) part, is often referred to wheat, paddy rice, corn, potato class, oil
The remainder of material, cotton, sugarcane after harvest seed.The photosynthetic product of crops has more than half to be present in stalk
In.Counted according to United Nations Environment Programme (UNEP), the stalk up to 17 produced by the various crops planted in the world are annual
Hundred million tons.
Stalk is as the common agricultural wastes in China rural area, with the characteristics of distribution is wide, stock number is big.According to its chemistry
Composition, stalk is mainly made up of cellulose, hemicellulose and lignin, additionally can be by water, ethanol, benzene etc. containing a small amount of
Neutral flux or diluted acid, the ash content of aqueous slkali extracting, extractable organic matter etc..
Stalk is not only crops significant by-products, while being also the important resources of production of industrial and agricultural production.But at present,
In terms of still predominantly staying in traditional burning, returning to the field, feed to the processing of stalk.Wherein, crop straw burning is in recent years all the more
People pay attention to.According to statistics, about 2,900,000,000 tons of the annual stalk yield in the whole world, wherein there are about 66% direct returning to farmland or as domestic energy
And be burned off.Crop straw burning can not only produce the toxic and harmful gas such as CO, SO2, can also produce substantial amounts of pellet, give
Human health brings harm.In fact, crop straw burning not only brings environmental pollution, it is also a kind of serious wasting of resources.Fill
The potential value of distribution pick stalk, is used as the raw material of industry by stalk, is the main development direction of straw utilization in recent years, also this is
Implement the importance of the energy-saving and emission-reduction task of the planning of country 12.
In the prior art, CN102614853A is prepared for a kind of adsorbent by raw material of carbonaceous material, first by carbonaceous material
Material be immersed in metal chloride solutions, it is to be impregnated fully after be dried, dried mixture is then put into tube furnace
Carry out carbonization-activation pore-creating and prepare compound adsorbent；Compound adsorbent after carbonization-activation is mixed with metal dust glass putty and aluminium powder
Close uniform, add binding agent and stir, be subsequently filled between the fin of metal fin pipe, dry；Adsorbent and gold will be carried
The metal fin pipe of category powder, which is put into tube furnace, to be sintered, and is sintered in adsorbent and metal fin pipe by metal dust
Together.
CN102815699A discloses a kind of preparation method of Novel snow pine branch carbonaceous material, to use hydrothermal carbonization method
The deodar branch carbonaceous material is prepared, is comprised the following steps：Collect deodar tree to drop in the branch on ground, remove the peel；After removing the peel
Branch be cut into segment, be put into the water dissolved with appropriate citric acid the temperature of progress hydrothermal carbonization reaction, wherein hydrothermal carbonization reaction
Spend for 180~220 DEG C, the reaction time is 28~32 hours；After the reacted solution natural cooling containing carbide and it will filter
Solution is removed, is dried in vacuo after carbide is washed；The deodar branch carbonaceous is obtained after dried carbide is ground
Material.
Meanwhile, also disclose carried out stalk to be used as environment conscious material after processing in the prior art, such as oil is inhaled
Attached dose, heavy metal absorbent etc..But, exist in the waste liquid for the method generation that stalk is handled present in prior art substantial amounts of
Lignin, causes to be difficult to administer, and forms secondary pollution, the technological deficiency, prior art such as the adsorbent adsorption effect of preparation is bad
In not a kind of method of integrated treatment stalk.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of integrated conduct method of agricultural stalk, to overcome existing skill
The problem of waste liquor contamination being produced present in art, but turn waste into wealth, the solid absorbent product prepared can apply to
Adsorb the copper ion in waste water.
It is a kind of that the application that solid absorbent handles waste water is prepared by wheat stalk, it is characterised in that：Described solid
Adsorbent is used to adsorb Cu in waste water ion；Described solid absorbent preparation method comprises the following steps：
(1) pre-process：Processing is dried in wheat stalk, dry wheat stalk is cut into after segment with mixer to be entered
One step is ground, and then crosses 100 mesh sub-sieves, takes the lower stalk of sub-sieve sieve to be cleaned 2 times using deionized water, afterwards using vavuum pump
Suction filtration is until filtrate becomes clarification, and obtained stalk powder is in drying baker in obtaining pretreated stalk after 55 DEG C of dry 48h
Powder；
(2) pre-treatment：The pretreated stalk powder that step (1) is obtained is molten using 0.01mol/L sodium hydroxide
The processing of liquid swollen, the swollen time is 48 hours, after swollen terminates, and adjusts pH to 6.6, clear using deionized water after centrifugal filtration
Wash 2 times, be subsequently placed in drying baker in 65 DEG C of dry 24h；Obtain the stalk powder after pre-treatment；
(3) carbonization treatment：Weigh stalk powder, deionized water and the expoxy propane after the pre-treatment that step (2) is obtained
Add in reactor, sealing, be passed through nitrogen 20min and discharge reactor internal residual gas, then air inlet and outlet valve are twisted
After tight, open magnetic stirring apparatus and be stirred, and logical cooling water conservation magnetic stirring apparatus, reactor is added by electronic oven
Heat is to 220 DEG C；Reach after reaction temperature, stop heating, first naturally cool to 180 DEG C, after be passed through condensed water, until reactor is cold
But to normal temperature；Then reactor is opened, reaction product is obtained into liquid product and solid product after suction filtration；Solid product exists
110 DEG C of dry 26h, obtain the solid material after carbonization treatment；Stalk powder after the pre-treatment that wherein step (2) is obtained, go
The quality usage ratio of ionized water and expoxy propane is 5:1500:5；
(4) modification：3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are dissolved in isopropanol-water mixed solution, form mixed
Solution A is closed, the solid material for then obtaining step (3) is added in above-mentioned mixed solution A, wherein, the chloro- 2- hydroxypropyls three of 3-
The mass ratio of ammonio methacrylate, isopropanol and water is 5： 23:230,3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are obtained with step (3)
The mass ratio of the solid material arrived is 1:10, gained mixture reacts 12h at 30 DEG C, reacts reaction system after terminating
PH is adjusted to 6.5；Then resulting solution is filtered, the solid product after filtering is cleaned 2 times using deionized water, Ran Hou
110 DEG C of dry 26h, obtain the solid product of 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides modification；Monoxone is dissolved in alcohol-water
In mixed solution, mixed solution B is formed, wherein, the mass ratio of monoxone, ethanol and water is 4:100:98, by the chloro- 2- hydroxypropyls of 3-
The solid product that base trimethyl ammonium chloride is modified is added in mixed solution B, wherein, 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides
Modified solid product is 5 with chloroacetic mass ratio:12；The stirring reaction 13h at 40 DEG C；React above-mentioned system after terminating
PH adjust to 6.6；Then resulting solution is filtered, the solid product after filtering uses deionized water cleaning 5 times, then
In 110 DEG C of dry 30h, solid absorbent product is obtained.
The described method for preparing solid absorbent product by wheat stalk further comprises：(5) water-coal-slurry is prepared
Dispersant：The pH for the liquid product that step (3) is obtained is adjusted to 12, and warming while stirring is added dropwise formaldehyde and be condensed to 75 DEG C
1h is reacted, temperature is then risen to 90 DEG C, sodium sulfite is added and carries out sulfonating reaction 2h, reaction is cooled to normal temperature after terminating and gone out
Material, obtains coal water slurry dispersing agent product.
A kind of integrated conduct method of agricultural stalk disclosed by the invention, can effectively avoid handling straw in the prior art
The waste water pollution problem that stalk is produced, the liquid product that the present invention will be enriched in lignin is condensed, after sulfonating reaction as water coal
Dispersant is starched, good technique effect is achieved；Meanwhile, the solid absorbent product that method of the invention is obtained, due to reaction
Process is accurately controlled, and selects optimal technological parameter, with good adsorption effect, can to the anion in waste water, sun from
Sub- pollutant is effectively purified.
Embodiment
With reference to specific embodiment, the present invention will be described in further detail.
Embodiment 1
A kind of integrated conduct method of agricultural stalk, it is characterised in that comprise the following steps：
(1) pre-process：Processing is dried in wheat stalk, dry wheat stalk is cut into after segment with mixer to be entered
One step is ground, and then crosses 100 mesh sub-sieves, takes the lower stalk of sub-sieve sieve to be cleaned 2 times using deionized water, afterwards using vavuum pump
Suction filtration is until filtrate becomes clarification, and obtained stalk powder is in drying baker in obtaining pretreated stalk after 55 DEG C of dry 48h
Powder；
(2) pre-treatment：The pretreated stalk powder that step (1) is obtained is molten using 0.01mol/L sodium hydroxide
The processing of liquid swollen, the swollen time is 48 hours, after swollen terminates, and adjusts pH to 6.6, clear using deionized water after centrifugal filtration
Wash 2 times, be subsequently placed in drying baker in 65 DEG C of dry 24h；Obtain the stalk powder after pre-treatment；
(3) carbonization treatment：Weigh stalk powder, deionized water and the expoxy propane after the pre-treatment that step (2) is obtained
Add in reactor, sealing, be passed through nitrogen 20min and discharge reactor internal residual gas, then air inlet and outlet valve are twisted
After tight, open magnetic stirring apparatus and be stirred, and logical cooling water conservation magnetic stirring apparatus, reactor is added by electronic oven
Heat is to 220 DEG C；Reach after reaction temperature, stop heating, first naturally cool to 180 DEG C, after be passed through condensed water, until reactor is cold
But to normal temperature；Then reactor is opened, reaction product is obtained into liquid product and solid product after suction filtration；Solid product exists
110 DEG C of dry 26h, obtain the solid material after carbonization treatment；Stalk powder after the pre-treatment that wherein step (2) is obtained, go
The quality usage ratio of ionized water and expoxy propane is 5:1500:5；
(4) modification：3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are dissolved in isopropanol-water mixed solution, form mixed
Solution A is closed, the solid material for then obtaining step (3) is added in above-mentioned mixed solution A, wherein, the chloro- 2- hydroxypropyls three of 3-
The mass ratio of ammonio methacrylate, isopropanol and water is 5： 23:230,3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are obtained with step (3)
The mass ratio of the solid material arrived is 1:10, gained mixture reacts 12h at 30 DEG C, reacts reaction system after terminating
PH is adjusted to 6.5；Then resulting solution is filtered, the solid product after filtering is cleaned 2 times using deionized water, Ran Hou
110 DEG C of dry 26h, obtain the solid product of 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides modification；
Monoxone is dissolved in alcohol-water mixed solution, mixed solution B is formed, wherein, the matter of monoxone, ethanol and water
Amount is than being 4:100:98, the solid product that 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are modified is added in mixed solution B, its
In, the solid product that 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are modified is 5 with chloroacetic mass ratio:12；Stirred at 40 DEG C
React 13h；Reaction is adjusted the pH of above-mentioned system to 6.6 after terminating；Then resulting solution is filtered, the solid after filtering
Product is cleaned 5 times using deionized water, then in 110 DEG C of dry 30h, obtains solid absorbent product；
(5) coal water slurry dispersing agent is prepared：The pH for the liquid product that step (3) is obtained is adjusted to 12, and warming while stirring is extremely
75 DEG C, formaldehyde is added dropwise and carries out condensation reaction 1h, temperature is then risen to 90 DEG C, add sodium sulfite and carry out sulfonating reaction 2h, instead
Normal temperature discharging is cooled to after should terminating, coal water slurry dispersing agent product is obtained.
Embodiment 2
A kind of integrated conduct method of maize straw, it is characterised in that comprise the following steps：
(1) pre-process：Processing is dried in maize straw, dry maize straw is cut into after segment with mixer to be entered
One step is ground, and then crosses 100 mesh sub-sieves, takes the lower stalk of sub-sieve sieve to be cleaned 3 times using deionized water, afterwards using vavuum pump
Suction filtration is until filtrate becomes clarification, and obtained stalk powder is in drying baker in obtaining pretreated stalk after 55 DEG C of dry 48h
Powder；
(2) pre-treatment：The pretreated stalk powder that step (1) is obtained is molten using 0.09mol/L sodium hydroxide
The processing of liquid swollen, the swollen time is 64 hours, after swollen terminates, and adjusts pH to 7.4, clear using deionized water after centrifugal filtration
Wash 3 times, be subsequently placed in drying baker in 65 DEG C of dry 48h；Obtain the stalk powder after pre-treatment；
(3) carbonization treatment：Weigh stalk powder, deionized water and the expoxy propane after the pre-treatment that step (2) is obtained
Add in reactor, sealing, be passed through nitrogen 60min and discharge reactor internal residual gas, then air inlet and outlet valve are twisted
After tight, open magnetic stirring apparatus and be stirred, and logical cooling water conservation magnetic stirring apparatus, reactor is added by electronic oven
Heat is to 250 DEG C；Reach after reaction temperature, stop heating, first naturally cool to 180 DEG C, after be passed through condensed water, until reactor is cold
But to normal temperature；Then reactor is opened, reaction product is obtained into liquid product and solid product after suction filtration；Solid product exists
120 DEG C of dry 36h, obtain the solid material after carbonization treatment；Stalk powder after the pre-treatment that wherein step (2) is obtained, go
The quality usage ratio of ionized water and expoxy propane is 20:500:3；
(4) modification：3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are dissolved in isopropanol-water mixed solution, form mixed
Solution A is closed, the solid material for then obtaining step (3) is added in above-mentioned mixed solution A, wherein, the chloro- 2- hydroxypropyls three of 3-
The mass ratio of ammonio methacrylate, isopropanol and water is 10：16:200,3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are obtained with step (3)
The mass ratio of the solid material arrived is 3:5, gained mixture reacts 20h at 65 DEG C, reacts the pH of reaction system after terminating
Adjust to 7；Then resulting solution is filtered, the solid product after filtering is cleaned 3 times using deionized water, then 120
DEG C dry 48h, obtain 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides modification solid product；
Monoxone is dissolved in alcohol-water mixed solution, mixed solution B is formed, wherein, the matter of monoxone, ethanol and water
Amount is than being 9:20:20, the solid product that 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are modified is added in mixed solution B, its
In, the solid product that 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are modified is 10 with chloroacetic mass ratio:6；Stirred at 80 DEG C
Mix reaction 24h；Reaction is adjusted the pH of above-mentioned system to 7.5 after terminating；Then resulting solution is filtered, consolidating after filtering
Body product is cleaned 9 times using deionized water, then in 115 DEG C of dry 72h, obtains solid absorbent product；
(5) coal water slurry dispersing agent is prepared：The pH for the liquid product that step (3) is obtained is adjusted to 12.8, warming while stirring
To 75 DEG C, formaldehyde is added dropwise and carries out condensation reaction 2h, temperature is then risen to 90 DEG C, add sodium sulfite and carry out sulfonating reaction 3h,
Reaction is cooled to normal temperature discharging after terminating, obtain coal water slurry dispersing agent product.
Embodiment 3
A kind of integrated conduct method of sugarcane stalk, it is characterised in that comprise the following steps：
(1) pre-process：Processing is dried in sugarcane stalk, dry sugarcane stalk is cut into after segment to be entered with mixer
One step is ground, and then crosses 100 mesh sub-sieves, takes the lower stalk of sub-sieve sieve to be cleaned 3 times using deionized water, afterwards using vavuum pump
Suction filtration is until filtrate becomes clarification, and obtained stalk powder is in drying baker in obtaining pretreated stalk after 55 DEG C of dry 48h
Powder；
(2) pre-treatment：The pretreated stalk powder that step (1) is obtained is molten using 0.08mol/L sodium hydroxide
The processing of liquid swollen, the swollen time is 50 hours, after swollen terminates, and adjusts pH to 7, after centrifugal filtration, and 3 are cleaned using deionized water
It is secondary, it is subsequently placed in drying baker in 65 DEG C of dry 40h；Obtain the stalk powder after pre-treatment；
(3) carbonization treatment：Weigh stalk powder, deionized water and the expoxy propane after the pre-treatment that step (2) is obtained
Add in reactor, sealing, be passed through nitrogen 40min and discharge reactor internal residual gas, then air inlet and outlet valve are twisted
After tight, open magnetic stirring apparatus and be stirred, and logical cooling water conservation magnetic stirring apparatus, reactor is added by electronic oven
Heat is to 240 DEG C；Reach after reaction temperature, stop heating, first naturally cool to 180 DEG C, after be passed through condensed water, until reactor is cold
But to normal temperature；Then reactor is opened, reaction product is obtained into liquid product and solid product after suction filtration；Solid product exists
114 DEG C of dry 30h, obtain the solid material after carbonization treatment；Stalk powder after the pre-treatment that wherein step (2) is obtained, go
The quality usage ratio of ionized water and expoxy propane is 15:600:4；
(4) modification：3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are dissolved in isopropanol-water mixed solution, form mixed
Solution A is closed, the solid material for then obtaining step (3) is added in above-mentioned mixed solution A, wherein, the chloro- 2- hydroxypropyls three of 3-
The mass ratio of ammonio methacrylate, isopropanol and water is 8：20:210,3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are obtained with step (3)
The mass ratio of the solid material arrived is 2:6, gained mixture reacts 16h at 50 DEG C, reacts the pH of reaction system after terminating
Adjust to 6.8；Then resulting solution is filtered, the solid product after filtering is cleaned 3 times using deionized water, Ran Hou
115 DEG C of dry 30h, obtain the solid product of 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides modification；
Monoxone is dissolved in alcohol-water mixed solution, mixed solution B is formed, wherein, the matter of monoxone, ethanol and water
Amount is than being 8:50:60, the solid product that 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are modified is added in mixed solution B, its
In, the solid product that 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are modified is 7 with chloroacetic mass ratio:10；Stirred at 70 DEG C
React 20h；Reaction is adjusted the pH of above-mentioned system to 7 after terminating；Then resulting solution is filtered, the solid production after filtering
Thing is cleaned 8 times using deionized water, then in 112 DEG C of dry 30-72h, obtains solid absorbent product；
(5) coal water slurry dispersing agent is prepared：The pH for the liquid product that step (3) is obtained is adjusted to 12.6, warming while stirring
To 75 DEG C, formaldehyde is added dropwise and carries out condensation reaction 2h, temperature is then risen to 90 DEG C, add sodium sulfite and carry out sulfonating reaction
1.6h, reaction is cooled to normal temperature discharging after terminating, obtain coal water slurry dispersing agent product.
The solid absorbent product that embodiment 1-3 is obtained carries out absorption test, absorption test to the copper ion in waste water
Result afterwards is as shown in table 1.Table 1 is absorption test results of the embodiment 1-3 to Cu in waste water ion.
| Test result | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Copper ion concentration (mol/L) in original waste water | 0.01 | 0.008 | 0.0006 |
| Cu in waste water ion concentration (mol/L) after absorption | 0.00008 | 0.00007 | 0.00005 |
As shown in Table 1, tool of the solid absorbent product that 1-3 of the embodiment of the present invention is prepared to Cu in waste water ion
There is good adsorption effect.
Although above-described embodiment is made that detailed description to the present invention, it is only a part of embodiment of the invention,
Rather than whole embodiments, people can also obtain other embodiment according to the present embodiment under the premise of without creativeness, these
Embodiment belongs to protection scope of the present invention.
Claims (1)
1. a kind of prepare the application that solid absorbent handles waste water by wheat stalk, it is characterised in that：Described solid is inhaled
Attached dose is used to adsorb Cu in waste water ion；Described solid absorbent preparation method comprises the following steps：
(1) pre-process：Processing is dried in wheat stalk, dry wheat stalk is cut into after segment further with mixer
Grind, then cross 100 mesh sub-sieves, take the lower stalk of sub-sieve sieve to be cleaned 2 times using deionized water, afterwards using vavuum pump suction filtration
Until filtrate becomes clarification, obtained stalk powder is in drying baker in obtaining pretreated stalk powder after 55 DEG C of dry 48h；
(2) pre-treatment：The pretreated stalk powder that step (1) is obtained is moistened using 0.01mol/L sodium hydroxide solution
Swollen processing, the swollen time is 48 hours, after swollen terminates, and adjusts pH to 6.6, after centrifugal filtration, and 2 are cleaned using deionized water
It is secondary, it is subsequently placed in drying baker in 65 DEG C of dry 24h；Obtain the stalk powder after pre-treatment；
(3) carbonization treatment：The stalk powder after the pre-treatment that step (2) is obtained, deionized water and expoxy propane is weighed to add
In reactor, sealing is passed through nitrogen 20min and discharges reactor internal residual gas, then after air inlet and outlet valve are tightened,
Magnetic stirring apparatus is opened to be stirred, and logical cooling water conservation magnetic stirring apparatus, reactor is heated to by electronic oven
220℃；Reach after reaction temperature, stop heating, first naturally cool to 180 DEG C, after be passed through condensed water, until reactor is cooled to
Normal temperature；Then reactor is opened, reaction product is obtained into liquid product and solid product after suction filtration；Solid product is at 110 DEG C
26h is dried, the solid material after carbonization treatment is obtained；Stalk powder, deionization after the pre-treatment that wherein step (2) is obtained
The quality usage ratio of water and expoxy propane is 5:1500:5；
(4) modification：3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are dissolved in isopropanol-water mixed solution, mixing are formed molten
Liquid A, the solid material for then obtaining step (3) is added in above-mentioned mixed solution A, wherein, the chloro- 2- Hydroxyproyl Trimethyls of 3-
The mass ratio of ammonium chloride, isopropanol and water is 5：23:What 230,3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides were obtained with step (3)
The mass ratio of solid material is 1:10, gained mixture reacts 12h at 30 DEG C, and reaction adjusts the pH of reaction system after terminating
Save to 6.5；Then resulting solution is filtered, the solid product after filtering is cleaned 2 times using deionized water, then 110
DEG C dry 26h, obtain 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides modification solid product；Monoxone is dissolved in into alcohol-water to mix
In solution, mixed solution B is formed, wherein, the mass ratio of monoxone, ethanol and water is 4:100:98, by the chloro- 2- hydroxypropyls three of 3-
The solid product that ammonio methacrylate is modified is added in mixed solution B, wherein, 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are modified
Solid product and chloroacetic mass ratio be 5:12；The stirring reaction 13h at 40 DEG C；React the pH of above-mentioned system after terminating
Adjust to 6.6；Then resulting solution is filtered, the solid product after filtering is cleaned 5 times using deionized water, Ran Hou
110 DEG C of dry 30h, obtain solid absorbent product；
Obtained solid absorbent product is subjected to absorption test to the copper ion in waste water, the result after absorption test is：It is former
Beginning Cu in waste water ion concentration is that Cu in waste water ion concentration is 0.00008 mol/L after 0.01 mol/L, absorption.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543570.XA CN105148849B (en) | 2013-11-06 | 2013-11-06 | It is a kind of that the application that solid absorbent handles waste water is prepared by wheat stalk |
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| CN201510543570.XA CN105148849B (en) | 2013-11-06 | 2013-11-06 | It is a kind of that the application that solid absorbent handles waste water is prepared by wheat stalk |
| CN201310563383.9A CN103566899B (en) | 2013-11-06 | 2013-11-06 | A kind of integrated conduct method of agricultural stalk |
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| CN201310563383.9A Division CN103566899B (en) | 2013-11-06 | 2013-11-06 | A kind of integrated conduct method of agricultural stalk |
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|---|---|---|---|---|
| CN104741083A (en) * | 2015-03-30 | 2015-07-01 | 安徽理工大学 | Method for preparing composite magnetic adsorption material |
| CN105272389A (en) * | 2015-06-04 | 2016-01-27 | 浙江科技学院 | Pig manure carbon-based fertilizer development method based on soil improvement |
| CN104986822B (en) * | 2015-06-19 | 2017-03-08 | 华东理工大学 | A kind of chemical modification carries the preparation of iron peanut shell dephosphorization material and renovation process |
| CN105396556B (en) * | 2015-11-12 | 2017-10-31 | 广州逸仙环境保护科技有限公司 | A kind of method that efficient formaldehyde adsorbent is prepared with the pinecone |
| CN105950251A (en) * | 2016-05-12 | 2016-09-21 | 华南理工大学 | Garden rubbish utilization method based on hydrothermal carbonization and solid biomass fuel |
| CN106281514B (en) * | 2016-08-31 | 2018-07-13 | 佛山市南海海丰化工有限公司 | A kind of preparation method of long-acting stable effective dispersant additive |
| CN109078612B (en) * | 2018-08-28 | 2021-08-03 | 山东科技大学 | Carbon-based nano zero-valent iron composite material prepared from low-rank coal and method |
| CN110760323B (en) * | 2019-09-24 | 2021-03-30 | 中国石油天然气集团有限公司 | Magnetic coupling seal transmission structure and thermal reaction furnace |
| CN111087068B (en) * | 2019-12-24 | 2022-03-29 | 南京公诚节能新材料研究院有限公司 | Preparation method of biological filter material for water purification treatment |
| CN111057568B (en) * | 2019-12-25 | 2020-12-22 | 华南理工大学 | Method for improving yield of lignin pyrolysis oil and application thereof |
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| CN102626608A (en) * | 2012-04-16 | 2012-08-08 | 南京大学 | Straw modified into amphiprotic adsorbent and preparation method thereof |
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| BRPI0911421A2 (en) * | 2008-04-17 | 2017-05-23 | Csl Carbon Solutions Ltd | process for converting biomass to coal-like material using hydro-thermal carbonization |
| US8414664B2 (en) * | 2009-03-02 | 2013-04-09 | HydoChar LLC | Algal coal and process for preparing same |
| CN103058313B (en) * | 2013-01-11 | 2014-04-09 | 中国科学院南京土壤研究所 | Method for removing oxytetracycline from livestock and poultry breeding wastewater by biomass charcoal of straws |
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Non-Patent Citations (1)
| Title |
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| 小麦秸秆吸附剂的制备及其对溶液中铜离子的吸附性能研究;蒲丽君;《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》;20111015(第10（2011）期);第33-34页第5.2.1节，5.2.3节，第36-37页第5.3.5节 * |
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